Motorcycle fuel tank



FIG. 1 is a side elevational view of a motorcycle fuel tank in accordance with our new design, the opposite side elevational view being a mirror image;

FIG. 2 is a top plan view thereof;

FIG. 3 is a perspective view from one side thereof; and,

FIG. 4 is a perspective view from the other side thereof.

The broken line showings of the element on top of the fuel tank and its boundaries, and the remainder of the motorcycle, are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a motorcycle fuel tank, as shown and described. 